Sheet for sanitary and surgical purposes and method of making the same



Jan. 10, 1933. 1 I 1,893,669

SHEET FOR SANITARY AND SURGICAL PURPOSESAND METHOD OF MAKING THE SAMEFiled June 19, 1929 lead L. Gilbert, h?

Faiented Jan. 10, 1933 A UNITED STATES LEVI L. GILBERT, F MUSil (EGON,MICHIGAN PATENT FLOFFICE SHEET FOR SANITARY AND SURGICAL PURPOSES DMETHOD OF ZlYLAK'IIil'G THE SAME Application filed June 19,

This invention relates to a sheet for sanitary and surgical purposes anda method of making the same which sheet is formed from least one of thesheets of white paper. Doctors prefer a white surface in sanitarysheets.

This invention is'directed to a sheet made of paper in composite formwith at least one of the sheets preferably of whitepaper together with amethod of making the same and is directed to a composite sheet whereintwo sheets 'of paper one of which is preferably of white paper arerolled together with asphalt between the two sheets in the presence ofheat of such a temperature as will-not only melt the asphalt but willsterilize the paper. The preferred temperature being approximately 150fF.

- An object of this invention is to provide a method of making acomposite sheet of paper for surgical purposes which is sanitary andwaterproof.

Another object of the invention is to provide a composite sheet made ofpaper, Waterproofed and sterilized which may be used for surgical andsanitary purposes.

A further object of the invention is to provide a sanitary sheet forsurgical purposes and the like which is economical to manufacture andwhich is discarded after a single use.

A yet further object of the invention is to provide a composite sanitarysterilized sheet with at least one side of white paper.

Another and still further ob]ect of the in-' vention is to provide acomposite sheet of two single sheets of paper one of which is preferablyof white paper rolled together with asphalt, or other waterproofing material, between the two single sheets under pres- 1929. Serial No.372,109.

sure and'in the presence of a sterilizing temperature. N

The above, other, and further objects of the invention willsbe apparentfrom the following description accompanying drawing, and appended claim.

According to the invention a composite sheet is formed by the method ofrolling I together two single sheets of paper one of which is preferablyof white paper with asphalt or other suitable waterproofing materialorbinder between the same in the presence of such heat as will not onlymelt the asphalt or other binder as to make the same highly fluid foradhesive purposes but at the same time thoroughly sterilizes the paperso that articles may be made from the same for sanitary and surgicalpurposes. V The accompanying drawing illustrates an embodiment oftheinvention' and; diagrammatically represents a composite sheet made inaccordance with this invention, the drawing being greatly exaggeratedfor the purpose of clearness. Figure 1 is an enlarged fragmentalsectional view thru a composite sheet constructed in accordance withthis invention. Figure 2 is a perspective view of a pan constructed ofcomposite paper of this in vention.

The method of this invention contemplates the provision of two. suitablesheets of paper at least one of which is preferably of white paper androlling these two sheets together with asphalt between the same foradhesive purposes and, in the rolling, subjecting the same to a highheat of approximately 450 F.

which not only liquefies the asphalt to such a very thin layer ofasphalt 3 between the same. The rolling is done in the presence of highheat such as 450 F. which heat com pletely liquefies the asphalt so asto make a lirm binder between the sheets 1 and 2 and at the same timethoroughly sterlizes the sheets.

The sheet is used with the white portion 1 uppermost and because of theuse of the asphalt and the method of construction is conipletelywaterproof.

Suitable articles may be made by turning back the marginal portions of asheet to form a pan such as that illustrated in Figure 2 wherein thebody of the sheet is of white paper 1 and the outer portion 2 of whitepaper or other paper as desired. Turning back the margins as at at asillustrated in Figure 2 provides a dam about the margins of the sheet toprevent the escape of water or other liquids when the sheet is in use.

Doctor prefer and desire white paper for several reasons. First of all,the appearance of white is more pleasing than any other and furthermore,white better reflects light to aid the doctor in using the sheet of thepresent invention. Furthermore, the whitesheet shows up excretions andsecretions very readily so that these can be much better examined.

The use of the waterproof adhesive between the two sheets of paper fromwhich the composite article of the present invention is made and themanner of pressing together these sheets with the adhesive in between issuch that the adhesive impregnates the two sheets of paper leaving theouter surfaces of the completed sheet free from shiny appearance andslippery finish "so that the liquids such as secretions and excretionsdo not run off. but remain on the sheet.

A sheet such as that herein described is very useful for doctors asdoctors may carry a supply of these composite paper sheets when makingisolated calls and when through with treatment may discard the sheetwithout having to resterilize it as is necessary when rubber sheeting isused.

Oftentimes doctors are called on emergency cases requiring surgicaltreatment.- of some character necessitating the use of sanitary sheetingto protect the patient and also the table or bed on which the patient islying.

Rubber sheetings, of course, are heavy and cumbersome and requiresterilization and complete cleansing after every use. sometimesdifiicult for doctors or others tending emergency calls to carry a.sutficient quantity of rubber sheetings for all purposes.

It is possible for a doctor to provide him- It is.

herein contemplates any temperature that destroys germs and spores andincludes temperatures as high as from 385 F. to 450 F. The compositesheet of this invention may be formed by pressing or forcing togetherthe two separate sheets in a manner other than by rolling and the claimis to be construed accordingly.

A composite sheet made in accordance with I this invention is flexibleand pliable and smooth and has been proved to be completely waterproofor liquid-proof in use. a

The invention has been described herein more or less precisely, yet itis to be understood that changes may be made in the arrangement andproportion of parts and that equivalents may be substituted withoutdeparting from the spirit and scope of the invention.

The invention is claimed as follows:

The method of making a sterilized composite paper sheet for sanitary andsurgical purposes, which method comprises the placing of a thin layer ofasphalt between a pair of paper sheets, then forcing said sheets andasphalt together in intimate relation in the presence of a temperaturehigh enough to melt the asphalt and sustained to produce sterilizationof the composite sheet.

In testimony whereof I have hereunto subscribed my name at Chicago, CookCounty,

Illinois.

LEVI L. GILBERT.

